Explain Relational algebra operations with proper examples

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written 9.4 years ago by

teamques10 ★ 70k

modified 3.1 years ago by

yashbeer ★ 11k

The terms are:

(i) Set difference

(ii) Generalized Projection

(iii) Natural join

(iv) Rename

database management systems

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written 9.4 years ago by

teamques10 ★ 70k

• modified 9.4 years ago

Set Difference

Returns all rows that are in the result of query 1 but not in the result of query.

The relations R and S must be union-compatible, and the schema of the result is defined to be identical to the schema of R.
- Syntax: (Query Expression 1) - (Query …

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